15678838721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 20313538560

約数和(自身を除く): 4634699839

約数列:

[1, 7, 13, 31, 91, 107, 127, 217, 403, 409, 749, 889, 1391, 1651, 2821, 2863, 3317, 3937, 5317, 9737, 11557, 12679, 13589, 23219, 27559, 37219, 43121, 43763, 51181, 51943, 88753, 95123, 164827, 176657, 301847, 306341, 358267, 363601, 421259, 568919, 675259, 1153789, 1236599, 1356653, 1610233, 2948813, 3982433, 4726813, 5476367, 5557901, 9496571, 11271631, 17636489, 20933029, 38334569, 38905307, 72252713, 123455423, 146531203, 172294931, 505768991, 1206064517, 2239834103, 15678838721]

約数ペア:

[(1, 15678838721), (7, 2239834103), (13, 1206064517), (31, 505768991), (91, 172294931), (107, 146531203), (127, 123455423), (217, 72252713), (403, 38905307), (409, 38334569), (749, 20933029), (889, 17636489), (1391, 11271631), (1651, 9496571), (2821, 5557901), (2863, 5476367), (3317, 4726813), (3937, 3982433), (5317, 2948813), (9737, 1610233), (11557, 1356653), (12679, 1236599), (13589, 1153789), (23219, 675259), (27559, 568919), (37219, 421259), (43121, 363601), (43763, 358267), (51181, 306341), (51943, 301847), (88753, 176657), (95123, 164827)]